Crushing and mixing machine.



c. F. A. CHAPITEL. GRUSHING AND MIXINGMAGHINE. APPLICATION FILED DEC. 20, 1910.

2 SHEETS-SHEET 1.

COLUMBIA PLANOGIIAPH 030-. WASHINGTON. D. C,

Patented July 25, 1911.

o. P. A. GHAPITEL. GRUSHING AND MIXING MACHINE.

APPLICATION FILED DBO. 20, 1910.

2 8HBETB-SHBET 2.

COLUMBIA PLANOGBAP" C0.- WASIIINUTON. D. C.

Patented m 25, 1911.

CHARLES FRANQOIS ALFRED CHAPI'IEL, 0F NANTES, FRANCE.

CRUSHING AND MIXING MACHINE.

To all whom it may concern:

Be it known that I, CHARLES FRANQOIS ALFRED OHAPITEL, a citizen of the French Republic, and residing at Nantes, France, have invented certain new and useful Improvements in Crushing and Mixing Machines, of which the following is a specification.

My invention relates to crushing and mixing machines having swinging hammers which revolve with great speed within a stationary casing, the casing being surrounded with a slowly revolving drum screen, provided with buckets on its inner surface adapted to convey the unscreened material to an opening in the casing above the hammers.

In describing the invention reference will be had to the accompanying drawings where in like characters of reference denote corresponding parts in the several views, and in which Figure 1 is a vertical section of the device. Fig. 2 is a vertical section at right angles to that shown in Fig. 1. Fig. 3 is a sectional view of one of the hammers employed in the device. Fig. 4 is a plan view of a portion of the screen. Figs. 5 and 6 are sectional views of a modification of the device.

The improved crushing and mixing machine comprises a fixed casing composed of two side cheeks a either united by cross bolts, or may be cast integral with a section of the shell or peripheral wall of the cylinder casing 5. The said casing has an opening 0 in its upper end to receive the material coming from the screen and an opening d in its lower end through which the material passes to the screen. In the side walls of the casing are openings f, into which lead the pipes or conduits e conveying the material to be re duced. Suitably mounted in the bearings p, on the plates 0, which as shown are cast in one piece with the side cheeks a, is the shaft 9. The said shaft carries within the casing a sleeve 9 which is recessed so as to form a series of parallel disks or arms h to which the hammers 7c are pivotally connected by means of the rods Z. A pulley m, secured to the shaft 9, transmits motion to the same. In the upper end of the casing are arranged the screens 11, so as to receive material rebounding from the wall of the casing. Two doors 9 in the end walls of the cylinder permit easy access to the interior of the cylinder. The side cheeks a of the casing Specification of Letters Patent.

Application filed December 20, 1910.

Patented July 25, 1911.

Serial No. 598,368.

terminate in rails r upon which runs the sleeve drum.

The sifting drum is composed of two ends or crowns s united by partitions t which form a bucket chain. On the outer surface of each of the crowns s a series of rollers u are arranged which serve for carrying the drum. The sieve i) which forms the peripheral wall of the drum is composed of a number of sections of perforated sheet metal or wire gauze fixed upon a' frame so that they can be easily removed. Said frames are fixed upon the rims of the crown s. The drum carries at the middle of its periphery a ring or band 00 which serves as a driving pulley for the drum. The sifting is completed by grates 3 2 arranged in the cylinder so that they receive the material before it passes out of the lower portion of the device.

The operation of the machine is as follows :-The shaft 9 with its hub h is rotated at a high speed so that the hammers 7c are moved toward the periphery of the cylinder. The drum is revolved simultaneously at slow speed. The materials enter ing the openings 6 fall upon the moving hammers 76 whereby they are crushed and broken as well by the direct strokes of the hammers as by the ricochet motion which throws them against the screens 71. The material is submitted to this treatment until it is crushed into particles which are small enough to fall through the sieves o. The refuse from the sieves is collected by the buckets t and poured again into the cylinder through the opening 0.

The advantages of this machine are that a minimum of waste is produced as the hammers act only in an upward direction, that is to say break the material instead of crushing the same. There could further be superposed several series of sieves in order to obtain a simultaneous sifting of several sorts of grain.

It is evident that the construction of the machine could be modified within the limits of this invention. The sifting drum could for example have diiferent sieves superposed; the hammers (Fig. 3) could be mounted in the hub by means of one or more hinge joints; the head of the hammer (Fig. 3) could have several teeth or cutters and the screens (Fig. 4) could form combs between the prongs of which the teeth of the hammers can ass; the inner walls of the fixed cylinder could be reinforced and 2 which is connected with the shaft 3 of one of therollers.

I claim An improved crushing and mixing machine comprising in combination, a fixed cylinder having inlet openings in its end walls for; the material to be treated, one inlet opening at the upper end and an outlet opening at the lower end, impact plates arranged in the cylinder below the inlet openings, a transverse shaft revolubly mounted in the end walls, arms mounted upon the said shaft and swinging hammers mounted between said arms so that they swing outward when the shaft revolves, a sifting drum surrounding said cylinder, means for slowly revolving said sifting drum and buckets in said sifting drum, substantially as described and shown and for the purpose set forth.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

CHARLES FRANQOIS ALFRED OHAPITEL.

Vitnesses L. GoLnscHMmT, SAMUEL ALLEYNE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of fatents, Washington, D. C. 

